antibodies Review Monoclonal Antibody: A New Treatment Strategy against Multiple Myeloma Shih-Feng Cho 1,2,3, Liang Lin 3, Lijie Xing 3,4, Tengteng Yu 3, Kenneth Wen 3, Kenneth C. Anderson 3 and Yu-Tzu Tai 3,* 1 Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
[email protected] 2 Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan 3 LeBow Institute for Myeloma Therapeutics and Jerome Lipper Multiple Myeloma Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA;
[email protected] (L.L.);
[email protected] (L.X.);
[email protected] (T.Y.);
[email protected] (K.W.);
[email protected] (K.C.A.) 4 Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, No. 324, Jingwu Road, Jinan 250021, China * Correspondence:
[email protected]; Tel.: +1-617-632-3875; Fax: +1-617-632-2140 Received: 20 October 2017; Accepted: 10 November 2017; Published: 14 November 2017 Abstract: 2015 was a groundbreaking year for the multiple myeloma community partly due to the breakthrough approval of the first two monoclonal antibodies in the treatment for patients with relapsed and refractory disease. Despite early disappointments, monoclonal antibodies targeting CD38 (daratumumab) and signaling lymphocytic activation molecule F7 (SLAMF7) (elotuzumab) have become available for patients with multiple myeloma in the same year. Specifically, phase 3 clinical trials of combination therapies incorporating daratumumab or elotuzumab indicate both efficacy and a very favorable toxicity profile. These therapeutic monoclonal antibodies for multiple myeloma can kill target cells via antibody-dependent cell-mediated cytotoxicity, complement-dependent cytotoxicity, and antibody-dependent phagocytosis, as well as by direct blockade of signaling cascades.